A motion dependency surgical robotic system (100) employs an independent robotic arm (20) including a first surgical instrument, a dependent robotic arm (21) including a second surgical instrument, and a motion dependency robot controller (104). In operation, the motion dependency robot controller (104) controls an independent motion of the independent robotic arm (20) within a coordinate space responsive to an input signal indicative of the motion of the independent robotic arm (20) within the coordinate space, and further controls a motion of the dependent robotic arm (21) within the coordinate space as a function of a spatial geometric relationship between the independent robotic arm (20) and the dependent robotic arm (21) within the coordinate space. The spatial geometric relationship defines a procedural synchronization between the independent robotic arm (20) and the dependent robotic arm (21) in a synchronized execution of a surgical task by the surgical instruments.